Diisopropylethylamine → (R)-3-(7-Methyl-2-((2-(trimethylsilyl)ethoxy)methyl)-2H-indazol-5-yl)-1-oxo-1-(4-(piperidin-1-yl)piperidin-1-yl)propan-2-yl 4-(8-fluoro-2-oxo-1,2-dihydroquinazolin-3(4H)-yl)piperidine-1-carboxylate

Participants

Reaction Steps

To a solution of (R)-3-(7-methyl-2-((2-(trimethylsilyl)ethoxy)methyl)-2H-indazol-5-yl)-1-oxo-1-(4-(piperidin-1-yl)piperidin-1-yl)propan-2-yl 4-nitrophenyl carbonate (150 mg, 0.23 mmol) and 8-fluoro-3-(piperidin-4-yl)-3,4-dihydroquinazolin-2(1H)-one (84.2 mg, 1.50 equiv) in dimethylformamide (1 mL) was added diisopropylethylamine (79 μL, 0.45 mmol). The reaction was stirred at room temperature overnight. The reaction was concentrated and purified by column chromatography to give 78 mg (45%) as a colorless film. Mass spec.: 776.58 (MH)+.

Provenance & Evidence